EP 1176345 B1 20050112 - Air damper with graphite coated lip seal
Title (en)
Air damper with graphite coated lip seal
Title (de)
Luftdämpfer mit graphitbeschichteter Lippendichtung
Title (fr)
Amortisseur à air avec joint à lèvre revêtu de graphite
Publication
Application
Priority
US 62627000 A 20000725
Abstract (en)
[origin: EP1176345A2] The air damper (10) includes a piston (18) reciprocating within a cylindrical housing (12). The piston (18) includes a lip seal (30) which is made of rubber or thermoplastic elastomer impregnated with a minimum of 3% molybdenum/seal part weight, or a minimum of 2% polytetrafluoroethylene or silicone/seal part weight or a minimum of 1% wax/seal part weight. The lip seal (30) is coated with a minimum of 0.5% /seal part weight graphite powder/molybdenum disulfide. The housing (12) is made with a minimum of 2% silicone impregnated thermoplastic or a minimum of 2% moly sulfide impregnated thermoplastic. This provides for increased smoothness of operation of the air damper (10), particularly at low speeds. <IMAGE>
IPC 1-7
IPC 8 full level
F16F 9/02 (2006.01); F16F 9/32 (2006.01); F16F 9/36 (2006.01); F16J 15/16 (2006.01); F16J 15/32 (2006.01)
CPC (source: EP US)
F16F 9/0218 (2013.01 - EP US); F16F 9/368 (2013.01 - EP US); F16J 15/162 (2013.01 - EP US); F16J 15/324 (2013.01 - EP US); F16J 15/3284 (2013.01 - EP US); Y10S 277/935 (2013.01 - EP US); Y10S 277/944 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1176345 A2 20020130; EP 1176345 A3 20030402; EP 1176345 B1 20050112; CA 2351949 A1 20020125; CA 2351949 C 20060509; DE 60108312 D1 20050217; DE 60108312 T2 20050602; JP 2002106625 A 20020410; MX PA01007476 A 20020405; US 6513811 B1 20030204
DOCDB simple family (application)
EP 01113050 A 20010529; CA 2351949 A 20010629; DE 60108312 T 20010529; JP 2001224262 A 20010725; MX PA01007476 A 20010724; US 62627000 A 20000725